| 发明名称 |
Electronic price scale with contrast adjustment function, drive control system for liquid crystal display device and drive control method thereof |
| 摘要 |
An electronic price scale having a TFT type of LCD as a display comprises a contrast adjustment function which adjusts a contrast of the LCD.
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| 申请公布号 |
US2002191007(A1) |
申请公布日期 |
2002.12.19 |
| 申请号 |
US20020170517 |
申请日期 |
2002.06.13 |
| 申请人 |
FUJII NORIYASU |
发明人 |
FUJII NORIYASU |
| 分类号 |
G01G23/37;G01G19/414;G01G23/36;G02F1/13;G02F1/133;G09G3/20;G09G3/36;(IPC1-7):G09G5/10 |
主分类号 |
G01G23/37 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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